Comb



FIG. 1 is a front elevational view of a comb showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a rear elevational view thereof; and

FIG. 4 is a sectional view taken along line IV--IV of FIG. 1. 

The ornamental design for a comb, substantially as shown and described. 